We humans are very quick to assume our positive traits and outcomes come from conscious decisions to make things that way. It's why every successful person has a book about how they chose to become successful. They just worked hard. It's something we want to believe rather than admit anything came down to luck of the draw.
I feel there is a point in the thread you’re commenting on though. It would be scientifically interesting to know whether the desired(positive) outcomes of this drug can be replicated by consciously controlling the quantity or quality of food without the use of the drug(by those who can). Still, presenting the result in a useful way rather than stating the drug is useless.
If you had a way to get the same results without any pharmaceutical intervention, and you’re a lucky one that _can_ do it, wouldn’t you want to know how?
When you talk to "skinny" people you'll hear things like they just forgot to eat or I just had a couple bites of cake then felt full/had enough.
Alternatively when you speak with heavier people you'll realize that they're white knuckling their entire lives (because calories are so abundant). On average they're actually exerting more willpower around food than skinnier people.
Not everyone of course, there are folks in either camp, but at population scale lack of food drive is what keeps people skinny in a calorie rich, low activity environment.